Feed crusher and grinder



No. 625,0al.. Patented may ls, i899.

o. J. zlEGLER.

FEED GBUSHER AND GRINDER.

(Application led Sept. 17, 1897.)

3 Sheets-Sheet 2? (N llodel.)

y @nl No. 625,08I.

PatentedMay I6, |899. 0. J. ZIEGLER.

`FEED GRUSHER AND GRINDER.

(Application led Sept. 17, 1897.)

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Nrrnn STATES (PATENT rrIcIz..

oscAR J. ZIEGLER, or FREEPORT, ILLINOIS.

SPECIFICATION forming part of Letters Patent No. 625,081, dated May 16,1899. Application filed September 17, 1897. Serial No. 651,967. (Nomodel.)

To MZ whom. t may concern.-

Be it known that I, OSCAR J. ZIEGLER, a citizen of the United States ofAmerica, resid'- ing at Freeport, in the county of Stephenson and Stateof Illinois, have invented certain newand useful Improvements in FeedCrushers and Grinders, of which the following is a specification.

The object of this invention is to provide a feed-grinder that whenconnected with an ordinary windmill will operate Without attention andWithout clogging and grind at a rate proportional to the force of thewind even though the Wind should at times allow the apparatus to come torest. Ordinarily when feed-grinders gradually come to rest through lackof wind there is congestion in the burs or crusher, if a crusher isemployed, or-in both, and once stopped in this way the mill will notagain start until the wind exerts a force many times that needed forgrinding atan ordinary rate, for there is no movement, unless breakageocc urs, until the force is suflicient to overcome in an instant boththe resistance of the congested material and the inertia of the wholemoving portion of the apparatus, including the windmill itself. Toaccomplish the desired result, I place above ordinary grinding-burs abreaker of such character that it cannot offer serious resistance, evenif its discharge bewholly prevented, and :impart to this breaker a slowmovement transmitted through power-multiplying gearing. Between thebreaker and the burs are interposed devices that normally take from thebreakerand deliver to the burs the material to be ground by the latterand at a rate governed by the speed of the burs, the arrangement,however, being `such that while the burs are moving too slowly foreffective work, and yet are by no means at rest, delivery practicallyceases. If, then, the wind dies away, the mill stops with little or nomaterial between the burs; but when it again increases or rises the millstarts, and as soon as the movement is rapid enough for any effectivework the feed or delivery to the burs gradually begins again and keepspace with the speed of the burs. Means are also provided whereby therate of feed for any given speed of the burs may be varied in accordancewith the character of the material to be ground or the fineness ofgrinding desired, it being, of course, understood that if the materialoifer great resistance or if the burs be set for very line grinding thedelivery should be slower.

In the drawings, Figures 1 and 2 are respectively side and endelevations of the machine. Fig. 3 is a plan view, a certain hopper beingomitted. Fig. 4 is a similar view with certain breaking mechanism alsoomitted. Fig. 5 is a section on the line 5 5, Fig. l. Fig. 6 is asection on the line`6 6, Fig. 3. Fig. isasec tion on the line 7 7 ofFig. 1. Fig. Sis an elevation looking from the right in Fig. l. 9 is asection on the line 9 9 of Fig. 8. Fig. IO is a section onthe line 10 10of Fig. 9.

In the views, A A A2 A3 represent a rigid frame supporting all otherparts of the machine. In this frame is mounted a powershaft S, driven bya Windmill-shaftS' through gears V V. The shaft S, acting through a gearD and pinion P3, drives a shaft d, having at one end a bur K and at theother a fly-wheelW. This bur and a companion non- Fig.

rotary bur K are inclosed in a chamber C',

fed from a hopper C and having an outlet C2. At some distance above theparts just mentioned is a breaker consisting of two parallel separatedshafts R, provided with widelyspaced breaking-teeth. The shafts are conanected by gears P P, and their toothed porA tions lie within a chamberB, having above a hopper B and below a discharging-neck B2. One of theshafts bears a gear D, which receives power from the shaft cl throughgears P2 P. Below the discharge-opening of the chamber B is an inclinedfeeding-spout H, having its lower open end above the hopper C andadjustably supported from a hook j on the chamber B by means of a strapl, pro vided with perforations t'. and engaging both the hook and a bailh', attached to the spout. The other end of the spout is pivotally supported from the chamber B by a link g, provided at its projecting lowerend with a fork or yoke G to embrace an eccentric f upon a small shaftf. The latter shaft is rotated from the shaft d by means ofsprocket-wheels d F and a chain E, and as it rotates the rear end of thespout is obviously swung from side to side at a speed corresponding tothe speed of the shaft d. If nowthe inclination of the spout be properlyadjusted with reference to breaker come to rest, of course; but so soon'as the Wind-wheel exerts force enough to bei` of practical value ingrinding that force is amply sufficient to overcome any slightresistance of the material in the breaker and again set the burs andbreaker in motion, and so soon as that motion is sufficient for grindingthe delivery to the burs begins and in rate follows -the speed of theburs.

1. The combination with grinding mechanism, of a breaker mounted abovesaid mechanism `and adapted to operate whether or not it is permitted todischarge its product, and automatic devices arranged between thebreaker andgriudin g mechanism to interrupt thedischarge from thebreaker when the speed of the grinding mechanism falls below apredetermined rate.

2. The combination with grinding mechanlchamber above, of the bur-shaft,the burs Within the first chamber, the toothed breakershafts in thesecond chamber, the vibrating, adjustably-inclined spout mounted inposition to receive material vfrom the breakerchamber and deliver it tothe bur-chamber, the power-shaft geared to the bur-shaft to drive it athigh speed, the gearing operated by the bur-shaft to drive thebreaker-shafts at a low speed, a shaft bearing an eccentric arranged tooscillate said spout, and sprocketand-chain mechanism driving theeccentricshaft yfrom the bur-shaft.

In Witness .whereof I have hereuutoset my hand, at Freeport, in thecounty of Stephenson and State of Illinois, this 30th day of August, A.D. 1897.

OSCAR J. ZIEGLER. lVitnesses:

L. HUGHES, W. I-I. J. STRATToN.

